Home / 998,563.60-1,498,039.80-429,943.60

Finding the Fourth Proportional to 998,563.60, 1,498,039.80 and 429,943.60

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Solution

The fourth proportional to 998,563.60, 1,498,039.80 and 429,943.60 is: 644,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,563.60 : 1,498,039.80 = 429,943.60 : x
  2. Step 2: Convert to fraction form
    998,563.60/1,498,039.80 = 429,943.60/x
  3. Step 3: Cross multiply
    998,563.60x = 1,498,039.80 × 429,943.60
  4. Step 4: Simplify right side
    998,563.60x = 644,072,624,555.28
  5. Step 5: Solve for x
    x = 644,072,624,555.28/998,563.60
  6. Step 6: Final answer
    x = 644,999.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.